This study looks at how the immune system, which protects us from diseases, reacts to flu shots in people with lymphoma, a type of blood cancer. We want to learn if their immune system makes antibodies (special proteins that fight viruses) and how strong the response is after getting a flu shot or a COVID vaccine.
Primary Goal: Check the body's protection rates after vaccines.
Secondary Goals: Study certain immune cells, see how long the immune response lasts, and understand how different cancer treatments affect immune responses.
Participants will get a flu shot on day 0 and be checked on days 7, 28, 90, 180, and 365. You can join if you have specific types of lymphoma and haven't had a flu shot this season. You can't join if you have certain health conditions, allergies, or have had a flu shot this season.
- The study lasts for 1 year with multiple follow-up visits.
- Participants receive a flu vaccine during the study.
- Eligibility is based on type of lymphoma and vaccine history.